Governor for gas-engines.



P. O KEY.

GOVERNOR FOB GAS ENGINES. Arruoulox NLE nume, 1010.

989,030. Patented Apr. 11, 1911.

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UNITED STATES PATENT OFFICE.

PmY m, 0I

, mm 0l Oli-BALI' T0 BABAHLOUIBE OKEY,

To all what it may conecta:

Be it known that I, Para! Omar, a citiaen of the United statearesidingat Columbus, in the county of Franklin and State of Ohio, have invented certain new and useful 'Improvements in Governors for Gas-E114 gines,`of which the following is a specification.

This invention relates to governors for gas engines and more particularly to governors for use upon gas engines used :for driving dynalnos; the primary objects of the invention being, first to provide a vernor which permits' a definite amount o ,ga 'ecus mixture to be delivered to the englnc'for 4each workingst-rokevand that amount to be determined by the workbeing done by the engine at that, particular instant, or in other words, to provide a throttling governor as distinguished from the hit and miss type, for it is well known in the art that the latter type is not well adapted for the governing of gas engines that are used in driving dynamos.' I

A further important'object is to control the action of the governor by the variations 'ofthe current strength in the external circuit of the dynamo, said governor serving to vmaintain a/constantvoltage insuid cir- Icuit, though .the load may vary in wide limits. A Further obiects and advantages of the invention will be set forth in the detailed description which now follows.

The the accompanying re shown 1n .drs a view partly in side elevation and` partly in section of an engineand dynamo having the invention applied thereto. In the drawing, the numeral-5 designates '40 a gas en e and 6 a dynamo driven thereby. The fue intake pipe 7 com ises chambers and 9, 'the Adischarge from t le mixi valve 10 entering the chamber 9 immediate y below an air inlet tube 11. One of the line 45 wires 12 leads directly to one of the binding posts .13 of the dynamo, the other. line wire 14 having the windings of a solenoid magnet 15 in series therewith, said wire 14 lneing continued and connected at 16 tothe 5 dynamo 6. The core 17 of the magnet 15 constitutes a valve having the ports `18 formed therein, thls'valve thro aport19formedinthediv1sionwa'll20between thechambm 8 and 9. This core is 55 vend of the armature' bar.

lith the valve 23 in its open position, the

ugh drawn through. the

iameddmwardbyaspring 21.

i @una por; 2 is foi-m through the iiision wall and is adapted to be closed by 'a valve 23 which is connected by v' stem 24 to an armature 25. This armature is arranged tobc attracted by the core 26 of a magnet 27 when the magnet are --A relay magnet 29v has a Acore 30 that is mnnectcd to un arma'- tnre bar 31 -pivotc-d at 82 to 'a base plate 33. A spring 34 normali armature' bar upwa y. Contact members tends to draw thisaman-:umanam- ,apr.11,1a11.1

*immuni-aymara kann windings 28 of said 35 and 36 are arranged adjacent thent-her 'Ihc armature bar 1s connected by a cond1 1-.:tor37 with the post 13 anda .conductor 38 connects the wmdin of the magnet .29 to the post 13. A con actor 39 connets the other sideof said windings to conductor 14. A conductor 40 connects the windings 28 of the 'magnet 27. to the contact member 36, the other set of sa1d windings being connect ed to thc conductor 14. A spring 41 normally holdsl -the valve 23 in its open position.

The operation of the 'device is as follows:

engine is started and the current m the external circuit builds up and as it builds up, the windin o the magnet 15 are energized and theva ve 7 is drawnl upwardly lo pci*- mit the passage of fue] through the ports` 18 and 19. Theseports are so` roportioned thit'iwith the valve 23 closed, t e amount of fuel received by the engine will not be quite suilicient to maintain the desired current strength in the external" circuit, but with both of the valves 17 and 23 open, the engine receives more thany sncientfuel and runs at such a rate of speed that the` voltage in the external circuit becomes excessive, the. voltage of the windings of the solenoid rclaymagnet 29 becomes sufficient to drnyv the core 30 downwardly until the outer end of' the armature bar 31 strikes the contact 36. This completes a circuit, to energize the ywindings 28 of the magnet 27, the energizing of this magnet attracting the armature bar 25 to close the valve 23 against the tension of the spring 41. The closing of this valve is but momento. since .as soon as it is closed, the amount o fuel delivered to the engine, is at once decreased to'what can be before stated, this is not suicient. to 'maintain the desired voltage in the external cirv cuit. As soon as the voltage drops, the

ports 18 and`19 and as' 4spring 84 acts to 'open the relay controlled circuit Oand dener the magnet 27 whereupon the valve is again by the spring 41 for the above operation to be repeated. It will thus be seen that when current is flowing thro the external circuit and consequen y through magnet 15, the governor acts on the throttlng principle because of valve' 17 remaining su stantially open to a desglree dependent upon the load in the extern circuit and the actual close regulation being obtained by the small valve 23 which further closes or 0 ns the intake port should the voltage be a ve or below normal.l The movements of this valve are extremely rapid land close together, and it admits of very close regulation. n

From the foregoing description, it will be seen that simple and ecient means are herein 0provided for accomplishing the objects the invention, but while the ele- 'ments shown and described are well adapted to serve the purposes for which they are insai voltage exceeds a predetermined degree.

b 2, The combinitio with anucpbmnstion'engiii` e o a o "ven y an electrically hctuatedl-lvxallve for the fuel supply to the engine, said electr cally actuated valve being connected in series with the dynamo, a second electrically atuatedthvalve also controllfiig'lthe fuelup to" e engin' means r opening' -sai gegend valve wheii the amount of fuel ad mitted to the engine is to mainexplosive en-. spring, said magnet being tain a predetermined voltage, and a relay for clos the circuit ofl said second valve, said rellicn actuated to close said circuit and consequen y the valve when the prede termined vol is exceeded.

3. The combination with an explosive engine and a dynamo driven thereby, o f a plurality of controlling valves located' in the fuel inlet of said e e and controlling the passage of the dui therethrou h, one of said valves actuated by aso enoid,'the actuation of`saivalve va ing 'with variations in the current' strengt Vand the other of said valves be eticall operated whereby said valve is positively cosed when the vo tage of the 'external circuit rises above a predetermined d and the mag'- net is energized, and 4positively opened when the voltage of the external circuit falls bel low the predetermined degree and the magnet is denergized. a

4. The com ination ,with an explosive ene and a dynamo, a' relay'niagnet, means or closing' an electric circuit when said magnet isl ener ed,'alfuel conduit divided into two a valve for controlling the passage of fu from one of said cham- 4bers to the other, a spriii'gnormally tending to hold said valve open, magnet for closingsaid valve against the tension of said located in the circuit that is controlled by! the relay magnet,

a second electrically controlled valve also controlling the paa of fuel from the first to the second nani magnet of .said last named valve being connected in series with the line wires from the dynamo, the constmction and arrangement 'being such that both valves are opened to admit a charge when the vol in -the ex'- terior circuit falls below-'a tugddetermined egree and one of said valves is closed when said voltage exceeds a predetermineddegree. Instlmo Whl'OfImxmy i in presence o 'two witn PERRY OKEY.'

chambers, the electrov 

